Possible Duplicate: Isometric rendering and picking? I've been looking for a formula to plot (world->screen) and mouse pick (world->screen) isometric tiles in a non-diamond-shaped world. ...
I want to know how to pick the correct tile on a isometric map in 3D space. Here is a 2D example. They use a colour key map to correctly pick the coordinate. How can I achieve this in 3D space? Is ...